de.tubs.cs.sc.casim
Class Functions

java.lang.Object
  |
  +--de.tubs.cs.sc.casim.Functions

public final class Functions

extends java.lang.Object

The class Functions provides some predefined functions for use with CAs.

Constructor Summary

Functions()

Method Summary

static java.lang.String	convertFloatString(java.lang.String s)
static void	doKeepRecord() make this multithreaded, create the HashMap.
static double	drandom()
static boolean	prob(double p)
static int	random(int max) random integer value in a given range.
static double	randomExponential()
static int	round(float x) round to Integer
static int	sign(double x)
static int	sign(int x)

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

Functions

public Functions()

Method Detail

random

public static final int random(int max)

random integer value in a given range.

Parameters:

max - Upper limit of random values.

prob

public static final boolean prob(double p)

Parameters:

p - the probability

Returns:

true with a probability of p.

randomExponential

public static final double randomExponential()

Returns:

a random number with exponential distribution

drandom

public static final double drandom()

Returns:

a random nnuber betwen 0 and 1

doKeepRecord

public static void doKeepRecord()

make this multithreaded, create the HashMap. This leads to a performance penalty of about a factor of 4.

sign

public static final int sign(double x)

Parameters:

x - any value

Returns:

the sign of x

sign

public static final int sign(int x)

Parameters:

x - any value

Returns:

the sign of x

convertFloatString

public static java.lang.String convertFloatString(java.lang.String s)

round

public static final int round(float x)

round to Integer